Verfahren zur Überwachung der CO-Gehalte in der Wasserstoffversorgung einer Polymerbrennstoffzelle

摘要

A method of operating a H2-O2 fuel cell system comprising the principal steps of (1) providing a hydrogen-rich fuel gas having a first CO content sufficient to poison the fuel cell's anode, and (2) injecting oxygen into said fuel gas upstream of said fuel cell to oxidize said CO with O2 in the presence of said hydrogen to produce a fuel stream for said fuel cell which has a second CO content less than said first content that will not poison said fuel cell.